if you talk to mike hagel he'll say this is a problem for us. he can go to china and say stop your spying. we do it too. we don target economic entities. we don't target corporations and not stealing the economic research of dupont or intel. we do what they consider traditional spying. the chinese don't and that's a distinction we make. whether china sees it that way or not is an entirely different question. >> rose: how do they know we make that distinction. >> i think there are set of laws under which nsa operates and those laws make it relatively clear the kinds of targets that you have. but if you think about it, we also don't have the system. if we were to take for example some secrets of you know a new jet liner that airbus is making. we typically don't have a system that works that way. we don't pick winners and loser. >> in enact the government knows a lot of stuff they don't tell companies. if they could communicated better with companies about who is hacking them that would go a long time. >> rose: sometimes the companies don't know. >